Running javadoc with no command line args causes it to crash
with a NullPointerException. Sample error message below:
[259]/usr/local/java/NIGHTLY/1.0betaM/bin: ./javadoc
javadoc: No packages or classes specified.
java.lang.NullPointerException
at sun.tools.javadoc.Main.error(Main.java:51)
at sun.tools.javadoc.Main.main(Main.java:191)